When investing in a market where asset trading is ongoing, persistent, and prices are constantly fluctuating, the most important factor is the perception and attitude toward “time.” Here, time refers to a defined “period,” a concept that encompasses the “past,” “present,” and “future.” Knowing the future can make us wealthy. All we know is the “past,” but in reality, even the past is often not fully understood. That is, we must admit we lack complete knowledge about the past, present, or future. In this state, we must conduct business and invest. The attitude toward business and investing is to focus on judging the “trend” by applying the concepts of differential and integral calculus simultaneously. Differential weather (e.g., morning and afternoon of a day) is easy to predict, but long-term future weather cannot be forecasted even by supercomputers. However, by accumulating knowledge of the past and analyzing it integrally, it is possible to predict the trend of the distant future to...
For the security of the Internet service, we have been asked by the Internet service companies to set the password combined by more than 8 or 10 "uppercase letter+lowercase letter+number+special character". But it was obviously of no use. This security guideline was recommended by Bill Burr who worked at NIST in the USA, he suggested this way in his report. Furthermore, the user was required to change the initial password set regularly. Despite this measure, the best way of security to protect users' accounts was the notification of the alarm for attempted hacking when the hacker tried. We have only tried to change the keys despite the simple method meanwhile. Today, the world has begun to comprehend that the security problem is not encryption or confidentiality, but simply cyber-dominion control and communication. - Joseph's "just my thoughts"